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동자개 (Pseudobagrus fulvidraco) 치어의 생존 및 성장에 미치는 Parathion의 영향

The Toxic Effects of Parathion on Survival and Growth of Juvenile Bagrid Catfish (Pseudobagrus fulvidraco)

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참고문헌

주제분류수산학

초록

Abstract

The toxic impact of parathion on bagrid catfish (Pseudobagrus fulvidraco) juvenile was examined 96hr LC50 value of parathion estimated as 1.90mg/L. Chronically, bagrid catfish were exposed for 30days to concentrations of parathion, i.e. 63, 95, 190 and 380μg/L, representing 3.3, 5.0, 10.0 and 20.0% of the 96hr LC50. Survival rate was significantly affected by the concentration over 63μg/L after 10days. Growth rate, specific growth rate (SGR) and feed efficiency were reduced in time as concentration dependent manner. Growth rates of the exposed groups were significantly reduced as 28.06-60.63% to the control fish, SGR was decresed as 1.50-4.72% and feed efficiency was declined as 6.10-11.90%. It can be concluded that if P. fulvidraco is chronically exposed to parathion over 63μg/L concentration, the physiological damages might affect growth factors of the fish.

참고문헌 (25)

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